Detachable cavity conveying system

Abstract

The utility model discloses a detachable cavity conveying system. The detachable cavity conveying system comprises a conveyor handle, a conveyor shell and a conveyor hose, wherein the conveyor handle is elastically sleeved with the conveyor shell, and the conveyor hose is detachably installed on the conveyor shell. One end of the conveyor shell sleeves one end of the conveyor handle; the conveyor hose is detachably installed at the other end of the conveyor shell, and one end of the conveyor hose extends into the conveyor shell. Through the arrangement, the conveyor hose is detachably mounted, and conveyor hoses with different bending angles can be conveniently selected and replaced according to the conveying angle required by an operation, so that a stent can be more accurately released into a target cavity, the adaptability of the stent conveying system and the target cavity is improved, the stent can be tightly attached to the inner wall of the cavity, and the stent conveying efficiency is improved. The operation of a doctor is greatly facilitated, meanwhile, friction between the stent and a target cavity due to the fact that the angle of the stent is not matched is avoided, and if the conveying stent is a medicine carrying stent, medicine loss caused by the fact that the angle of the stent is not matched in the conveying process can also be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a detachable cavity delivery system. BACKGROUND

[0002] Interventional therapy has the characteristics of small trauma and few complications. In interventional technology, stents are a common instrument, and stents are widely used in the treatment of human biliary tract, portal vein, trachea, main bronchus, esophagus, intestinal tract and various organic stenosis. Stents are mainly divided into two categories. One is a bare stent, which does not contain any other things on the surface, and its material is high polymer material, stainless steel or nickel-titanium alloy. The other is a composite stent, which is a stent with a film or drug on the surface, which can reduce the risk of restenosis. High polymer material stent is formed by weaving and heat setting to form a woven stent. Metal stents can be divided into woven metal stents and cut metal stents. The raw material of the woven metal stent is generally metal, which is formed by weaving and heat setting; the raw material of the cut metal stent is generally pipe, which is cut and heat set to form a cut metal stent.

[0003] For self-expanding stents or instruments, whether metal or high polymer material, the instrument is generally pre-assembled in the sheath of the delivery system before the operation. During the operation, the delivery system delivers the instrument to the lesion site and releases it to adhere to the cavity wall to block adhesion or blood flow, or to reopen the stenotic cavity, thereby reestablishing the channel to restore normal circulation of the cavity and achieving interventional therapy for cavity stenosis.

[0004] However, at present, especially for the delivery angle selection of the self-expanding stent in the nasal cavity, there are still many pain points, such as position deviation caused by improper selection of the delivery angle, poor cavity adaptation, stent falling off, insufficient support, etc. Therefore, it is urgent to develop a detachable delivery system that can be instantly replaced by doctors during clinical use to meet the use of instruments in different surgical situations.

[0005] The utility model patent with the publication number CN 219021791 U discloses a stent implantation system, which comprises a stent delivery device sleeved on a guide core. The guide core is bent and inserted into the target cavity in the body from the outside of the body. Then the stent delivery device is pushed along the guide core from the outside of the body to the target cavity in the body, so that the stent body can be quickly and accurately implanted into the target cavity in the body. The stent is bound outside the stent delivery device, and the endoscope soft lens is inside the stent delivery device. The endoscope soft lens is used for accurate positioning and point release of the stent.

[0006] However, the above stent implantation system structure is complex in operation, and the stent will rub against the cavity wall during transportation. The external friction will cause the pathological site in the cavity to further deteriorate. If the transported stent is a drug-loaded stent, a large amount of drug will be lost in the process, and the treatment effect is greatly reduced. Utility model content

[0007] Therefore, the utility model wants to solve the problem that the stent implantation system in the prior art will rub against the cavity wall during stent transportation, causing the pathological site in the cavity to further deteriorate, thereby providing a detachable cavity transportation system.

[0008] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0009] A detachable cavity transportation system, comprising a conveyor handle, an elastic sleeve set on the conveyor handle, a conveyor hose detachably mounted on the conveyor housing, and a conveyor housing; one end of the conveyor housing is sleeved on one end of the conveyor handle, the conveyor housing is suitable for placing a stent, and the conveyor handle is suitable for pushing the stent placed in the conveyor housing; the conveyor hose is detachably mounted on the other end of the conveyor housing, and one end of the conveyor hose extends into the conveyor housing

[0010] Further, the inner push rod is connected to one end of the conveyor handle in the conveyor housing.

[0011] Further, a spring is arranged between the conveyor housing and the conveyor handle, a first limiting ring is arranged on the middle part of the conveyor handle in the conveyor housing, and a second limiting ring is arranged on the inner cavity of the conveyor housing.

[0012] Further, the inner push rod is connected to one end of the conveyor handle in the conveyor housing.

[0013] Further, the inner push rod is connected to one end of the conveyor handle in the conveyor housing.

[0014] Further, a locking cap is sleeved on the end of the conveyor shell away from the conveyor handle, the locking cap is fastened to the outer periphery of the conveyor shell near the end of the conveyor shell, the other end of the locking cap is tapered, an annular elastic member is arranged in the tapered end of the locking cap, and the conveyor hose is adapted to be arranged between the sleeve and the annular elastic member.

[0015] Further, an outer thread is arranged on the outer peripheral wall of the other end of the conveyor shell, and a threaded groove matched with the outer thread is arranged on the inner wall of the locking cap.

[0016] Further, the annular elastic member is a rubber sealing ring.

[0017] Further, a fourth limiting ring is arranged on the inner side wall of the end of the conveyor shell away from the conveyor handle, and the one end of the conveyor hose abuts against the fourth limiting ring when the one end of the conveyor hose extends into the other end of the conveyor shell.

[0018] Further, an elastic pad layer is arranged on the inner wall of the end of the sleeve of the conveyor shell away from the conveyor handle, and the elastic pad layer is located on the outer periphery of the conveyor hose when the conveyor hose extends into the conveyor shell.

[0019] The technical scheme of the utility model has the following advantages:

[0020] 1. The detachable cavity delivery system can detachably mount the conveyor hose of the delivery system on the conveyor handle, so that different curved angle conveyor hoses can be selected and replaced according to the required delivery angle of the operation, so that the stent can be released into the target cavity more accurately, the adaptability of the stent delivery system to the target cavity is improved, the stent can be closely attached to the inner wall of the cavity, the operation of the doctor is greatly facilitated, and the deterioration of the diseased part in the target cavity caused by the friction between the stent and the target cavity due to the inadaptability of the stent angle is avoided, and if the delivery stent is a drug-loaded stent, the loss of drugs due to the inadaptability of the stent angle during the delivery process is also avoided, thereby reducing the treatment effect.

[0021] 2. The detachable cavity delivery system, a spring is arranged between the conveyor shell and the conveyor handle, a first limiting ring protruding along the outer periphery of the conveyor handle is arranged in the middle part of the conveyor handle in the conveyor shell, a second limiting ring protruding along the circumference of the inner cavity of the conveyor shell is arranged in the middle part of the conveyor shell, and the spring is arranged between the first limiting ring and the second limiting ring. In this way, when the conveyor handle is pushed to deliver the stent, the spring is compressed, and after the delivery is completed, the conveyor handle returns to the initial position under the stress of the spring; and the arrangement of the spring can avoid excessive pushing force on the delivery handle during the delivery of the stent, thereby affecting the stent delivery effect.

[0022] 3. The detachable cavity delivery system, a handle of the conveyor is connected with a lining core on one end in the conveyor shell, and an inner push rod is sleeved on the outer periphery of the lining core.

[0023] 4. The detachable cavity delivery system, a sleeve sleeved on the outer periphery of the inner push rod is connected in the other end of the conveyor shell away from the handle of the conveyor, and the conveyor hose is arranged on the outer periphery of the sleeve. In this way, the inner push rod is always between the lining core and the sleeve during movement, further ensuring the stability of the pushing path.

[0024] 5. The detachable cavity delivery system, a locking cap is sleeved on the other end of the conveyor shell away from the handle of the conveyor, the end of the locking cap close to the conveyor shell is tightly sleeved on the outer periphery of the conveyor shell, the other end of the locking cap is tapered, an annular elastic member is arranged in the tapered end of the locking cap, and the conveyor hose is arranged between the sleeve and the annular elastic member. In this way, the conveyor hose is tightly pressed against the outer periphery of the sleeve through the elastic member, so that the locking of the conveyor hose is limited, the connection stability between the conveyor hose and the conveyor shell after installation is improved, and the conveyor hose is prevented from loosening and separating after being installed on the conveyor shell.

[0025] 6. The detachable cavity delivery system, an outer thread is arranged on the outer periphery wall of the other end of the conveyor shell, and a thread groove matched with the outer thread is arranged on the inner wall of the locking cap. In this way, the connection strength between the conveyor shell and the conveyor hose can be improved through the threaded connection, and the conveyor hose is prevented from loosening from the conveyor shell.

[0026] 7. The detachable cavity delivery system, the annular elastic member is a rubber sealing ring. In this way, the friction between the conveyor hose and the rubber sealing ring can be improved, the connection strength is effectively improved, and the conveyor hose is prevented from separating from the conveyor shell during use.

[0027] 8. The detachable cavity delivery system, a fourth limiting ring is arranged on the inner side wall of the other end of the conveyor shell away from the handle of the conveyor, and the one end of the conveyor hose abuts against the fourth limiting ring when the one end of the conveyor hose is inserted into the other end of the conveyor shell. In this way, the one end of the inserted conveyor hose can be limited by the elastic member, so that the conveyor hose is prevented from being too deeply inserted into the conveyor shell.

[0028] 9. The detachable cavity conveying system provided by this utility model has an elastic pad on the inner wall of the conveyor housing at the end away from the conveyor handle. When the conveyor hose extends into the conveyor housing, the elastic pad is located on the outer periphery of the conveyor hose. This arrangement allows the elastic pad to create an elastic supporting force on the outer periphery of the conveyor hose, thereby creating a compressive force on the conveyor hose. This improves the connection stability between the conveyor hose and the conveyor housing after installation, preventing the conveyor hose from loosening or detaching after installation. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 A front view of the detachable cavity delivery system provided in an embodiment of this utility model;

[0031] Figure 2 for Figure 1 The enlarged view of point a shown;

[0032] Figure 3 for Figure 2 The cross-sectional view at point AA is shown below;

[0033] Figure 4 A cross-sectional schematic diagram of the detachable cavity delivery system provided by this utility model;

[0034] Figure 5 for Figure 4 The enlarged view at point b is shown below;

[0035] Figure 6 for Figure 5 The cross-sectional view at BB shown;

[0036] Figure 7 A cross-sectional schematic diagram of the elastic padding layer inside the detachable cavity delivery system provided by this utility model;

[0037] Figure 8 for Figure 7 The enlarged view at point c is shown;

[0038] Figure 9 for Figure 8 The cross-sectional view at CC is shown below;

[0039] Figure 10The structure diagram of the detachable cavity conveying system without the locking cap is provided in the utility model.

[0040] Figure 11 As Figure 10 The enlarged view of d shown in the figure.

[0041] Figure 12 As Figure 11 The sectional view of D-D shown in the figure.

[0042] Figure 13 The three-dimensional structure diagram of the detachable cavity conveying system without the locking cap is provided in the utility model.

[0043] Figure 14 The enlarged view of e shown in 13.

[0044] Figure 15 The internal structure perspective view of the detachable cavity conveying system is provided in the utility model.

[0045] The figure mark explanation: 1, the conveyor handle; 2, the conveyor shell; 3, the conveyor hose; 4, the inner push rod; 5, the spring; 6, the first limit ring; 7, the second limit ring; 8, the third limit ring; 9, the fourth limit ring; 10, the elastic member; 11, the elastic pad; 12, the locking cap; 13, the lining core; 14, the sleeve; 15, the outer thread. DETAILED DESCRIPTION

[0046] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, and obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of protection of the utility model.

[0047] In the description of the utility model, it is necessary to explain that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship based on the figure shown, and is only for the convenience of describing the utility model and simplifying the description, and is not indicated or implied that the indicated device or element must have a particular orientation, a particular orientation and operation, so it cannot be understood as the limitation of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0048] In the description of the utility model, it is necessary to explain, unless there is definite stipulation and limitation, the term "installation", "connection", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication inside two elements.For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0049] In addition, the technical features involved in the different embodiments of the utility model described below can be combined with each other as long as there is no conflict between them.

[0050] As Figures 1-15 A detachable cavity delivery system, as shown in a kind of, including conveyor handle 1, the conveyor shell 2 of elastic sleeve on conveyor handle 1 and detachable installation on the conveyor hose 3 of conveyor shell 2;Conveyor shell 2 one end is sleeved on one end of conveyor handle 1, the support is placed in conveyor shell 2, and conveyor handle 1 is suitable for pushing the support placed in conveyor shell 2;Conveyor hose 3 is detachably installed on the other end of conveyor shell 2, and one end of conveyor hose 3 extends into conveyor shell 2.

[0051] This detachable cavity delivery system, the conveyor hose 3 of delivery system is detachably installed on conveyor handle 1, it is convenient to select and replace the conveyor hose 3 of different bending angle according to the required delivery angle of operation, so that the stent can be released more accurately into the target cavity, improve the adaptability of stent delivery system and target cavity, can make stent closely adhere to the inner wall of cavity, greatly facilitate the operation of doctor, while avoiding the friction caused by the inadaptation of stent angle and target cavity to cause the deterioration of pathological site in target cavity, if the delivery stent is drug-loaded stent, also can avoid the loss of drug due to the inadaptation of stent angle during delivery, and further reduce the treatment effect.

[0052] In the embodiment, the inner push rod 4 is fixedly connected to one end of the conveyor shell 2 in the conveyor handle 1, and the end of the inner push rod 4 away from the conveyor handle 1 extends into the conveyor hose 3. Specifically, the end of the inner push tube away from the conveyor handle 1 is fixedly provided with an inner push head, the diameter of the inner push head is greater than the diameter of the inner push rod 4, and the outer diameter of the inner push head is matched with the inner diameter of the push tube.

[0053] In the embodiment, the spring 5 is arranged between the conveyor housing 2 and the conveyor handle 1, the first limiting ring 6 is arranged on the middle part of the conveyor handle 1 in the conveyor housing 2 and protrudes along the outer periphery of the conveyor handle 1, the second limiting ring 7 is arranged on the middle part of the conveyor housing 2 and protrudes along the inner cavity of the conveyor housing 2, the spring 5 is arranged between the first limiting ring 6 and the second limiting ring 7, and one end of the conveyor handle 1 in the conveyor housing 2 passes through the middle part of the second limiting ring 7. In this way, when the conveyor handle 1 is pushed to convey the stent, the spring 5 is compressed, and after the conveying is completed, the conveyor handle 1 returns to the initial position under the stress of the spring 5; at the same time, the arrangement of the spring 5 can avoid that the pushing force on the conveyor handle is too large to affect the stent conveying effect.

[0054] In the embodiment, the liner core 13 is fixedly connected to one end of the conveyor handle 1 in the conveyor housing 2, and the inner push rod 4 is sleeved on the outer periphery of the liner core 13. In this way, the liner core 13 is suitable for limiting and guiding the inner push rod 4 and supporting the inner push rod 4, so that the inner push rod 4 can keep the correct path during the stent pushing process, reduce deviation or jamming, and ensure the stability during the stent conveying process. Specifically, the sleeve pipe 14 is connected to the inner push rod 4 in the conveyor housing 2 away from the conveyor handle 1, and the conveyor hose 3 is arranged on the outer periphery of the sleeve pipe 14. Specifically, the liner core 13 is a stainless steel liner core 13, and the sleeve pipe 14 is a stainless steel sleeve pipe 14. In this way, the inner push rod 4 is always between the liner core 13 and the sleeve pipe 14 during the movement process, further ensuring the stability of the pushing path.

[0055] In the embodiment, the locking cap 12 is threadedly connected to the end of the conveyor housing 2 away from the conveyor handle 1, the end of the locking cap 12 close to the conveyor housing 2 is tightly sleeved on the outer periphery of the conveyor housing 2, the other end of the locking cap 12 is tapered, and the cross section of the other end of the locking cap 12 is isosceles trapezoidal, and the angle of the isosceles trapezoidal can be set to be between 0° and 180° as required. Specifically, the outer thread 15 is arranged on the outer periphery wall of the other end of the conveyor housing 2, and the thread groove matched with the outer thread 15 is arranged on the inner wall of the locking cap 12. In this way, the connection strength between the conveyor housing 2 and the conveyor hose 3 can be improved by the threaded connection, so as to avoid that the conveyor hose 3 is loosened from the conveyor housing 2. Specifically, the pulling force of the conveyor hose 3 is less than 10 N when the locking cap 12 is completely loosened; and the conveyor hose 3 can withstand a force of 30 N to 100 N without breaking when the locking cap 12 is locked. The locking cap 12 is arranged for fixing and dismounting, so that the conveyor hose with an angle of 0° to 150° can be replaced as required.

[0056] In the embodiment, the third limiting ring 8 is protruded along the inner wall of the third limiting ring 8, and the inner push rod 4 passes through the middle of the third limiting ring 8. In this way, one end of the stainless steel sleeve 14 is fixed on the third limiting ring 8 away from the handle 1 of the delivery device. In this way, the delivery hose 3 is adapted to be arranged between the sleeve 14 and the annular elastic member 10. In this way, the delivery hose 3 is tightly pressed against the outer periphery of the sleeve 14 by the elastic member 10, so as to limit the delivery hose 3, thereby improving the connection stability between the delivery hose 3 and the delivery device shell 2 after installation, and avoiding loosening and disconnection of the delivery hose 3 after installation on the delivery device shell 2.

[0057] In the embodiment, the annular elastic member 10 is fixedly arranged in the tapered end of the locking cap 12, and the delivery hose 3 is adapted to be arranged between the sleeve 14 and the annular elastic member 10. In this way, the delivery hose 3 is tightly pressed against the outer periphery of the sleeve 14 by the elastic member 10, so as to limit the delivery hose 3, thereby improving the connection stability between the delivery hose 3 and the delivery device shell 2 after installation, and avoiding loosening and disconnection of the delivery hose 3 after installation on the delivery device shell 2. Specifically, the annular elastic member 10 is a rubber sealing ring. In this way, the friction between the delivery hose 3 and the delivery device shell 2 can be improved, the connection strength can be effectively improved, and the delivery hose 3 can be prevented from being disconnected from the delivery device shell 2 during use.

[0058] In the embodiment, the fourth limiting ring 9 is integrally formed on the inner wall of the outer thread 15 of the delivery device shell 2 away from the handle 1 of the delivery device, and the delivery hose 3 abuts against the fourth limiting ring 9 when the one end of the delivery hose 3 extends into the other end of the delivery device shell 2. In this way, the one end of the delivery hose 3 extending into the delivery device shell 2 can be limited by the elastic member 10, so as to prevent the delivery hose 3 from excessively extending into the delivery device shell 2.

[0059] In the embodiment, the elastic pad 11 is fixedly arranged on the inner wall of the delivery device shell 2 away from the handle 1 of the delivery device, and the elastic pad 11 is located on the outer periphery of the delivery hose 3 when the delivery hose 3 extends into the delivery device shell 2. In this way, the elastic pad 11 can provide elastic support force to the outer periphery of the delivery hose 3, so as to provide extrusion force to the delivery hose 3, thereby improving the connection stability between the delivery hose 3 and the delivery device shell 2 after installation, and avoiding loosening and disconnection of the delivery hose 3 after installation on the delivery device shell 2. Specifically, the inner push rod 4 is sleeved on the outer periphery of the stainless steel lining core 13, the stainless steel sleeve 14 is sleeved on the outer periphery of the inner push rod 4, the delivery hose 3 is sleeved on the outer periphery of the stainless steel sleeve 14, and the elastic pad 11 is arranged between the delivery device shell 2 and the delivery hose 3 and at the outer thread 15 of the delivery device shell 2. Specifically, the thickness of the elastic pad 11 is 0.3 mm, the gap between the delivery hose 3 and the delivery device shell 2 is 1 mm, and the gap between the delivery device shell 2 and the delivery hose 3 is 0.5 mm. In an alternative embodiment, the thickness of the elastic pad 11 can be 0.1 mm to 0.5 mm, the gap between the delivery hose 3 and the delivery device shell 2 can be 0.2 mm to 1.5 mm, and the gap between the delivery device shell 2 and the delivery hose 3 can be 0.1 mm to 1 mm.

[0060] In summary, the detachable cavity delivery system, which detachably installs the delivery hose of the delivery system on the delivery handle, facilitates the selection and replacement of the delivery hose with different bending angles according to the required delivery angle of the surgery, so that the stent can be released more accurately into the target cavity, improves the adaptability of the stent delivery system to the target cavity, enables the stent to closely adhere to the inner wall of the cavity, greatly facilitates the operation of the doctor, and avoids the deterioration of the lesion in the target cavity due to the inadaptation of the stent angle to the target cavity and the resulting friction. If the delivery stent is a drug-loaded stent, it can also avoid the loss of drugs due to the inadaptation of the stent angle during the delivery process, thereby reducing the treatment effect.

[0061] Obviously, the above embodiments are only examples for clearly illustrating but not limiting the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A detachable cavity delivery system, characterized in that, The utility model provides a kind of transport device, including conveyor handle (1), the elastic sleeve of the conveyor handle (1) is set on conveyor shell (2) and detachably mounted on the conveyor hose (3) of the conveyor shell (2);The one end of the conveyor shell (2) is set on the one end of the conveyor handle (1), the support is suitable to be placed in the conveyor shell (2), the conveyor handle (1) is suitable to push the support placed in the conveyor shell (2);The other end of the conveyor hose (3) is detachably mounted on the conveyor shell (2), and the one end of the conveyor hose (3) is inserted into the conveyor shell (2).

2. The detachable lumen delivery system of claim 1, wherein, The one end of the conveyor handle (1) is connected with inner push rod (4) in the one end of the conveyor shell (2), and the one end of the inner push rod (4) is inserted into the conveyor hose (3) away from the conveyor handle (1).

3. The detachable lumen delivery system of claim 2, wherein, Spring (5) is arranged between the conveyor shell (2) and the conveyor handle (1), the first limiting ring (6) is arranged on the middle part of the conveyor handle (1) in the conveyor shell (2) and protrudes along the outer periphery of the conveyor handle (1), the second limiting ring (7) is arranged on the middle part of the conveyor shell (2) and protrudes along the inner cavity of the conveyor shell (2), and the spring (5) is arranged between the first limiting ring (6) and the second limiting ring (7).

4. The detachable cavity delivery system of claim 3, wherein, The one end of the conveyor handle (1) is connected with lining core (13) in the one end of the conveyor shell (2), and the inner push rod (4) is set on the outer periphery of the lining core (13).

5. The detachable cavity delivery system of claim 4, wherein, The one end of the conveyor shell (2) is connected with sleeve (14) set on the outer periphery of the inner push rod (4) away from the conveyor handle (1), and the conveyor hose (3) is suitable to be arranged on the outer periphery of the sleeve (14).

6. The detachable cavity delivery system of claim 5, wherein, The one end of the conveyor shell (2) is set with locking cap (12) away from the conveyor handle (1), the one end of the locking cap (12) is tightly set on the outer periphery of the conveyor shell (2) close to the conveyor shell (2), the other end of the locking cap (12) is tapered, the tapered end of the locking cap (12) is provided with annular elastic member (10), and the conveyor hose (3) is suitable to be arranged between the sleeve (14) and the annular elastic member (10).

7. The detachable cavity delivery system of claim 6, wherein, The outer periphery wall of the other end of the conveyor shell (2) is provided with external thread (15), and the inner wall of the locking cap (12) is provided with thread groove matched with the external thread (15).

8. The detachable cavity delivery system of claim 6, wherein, The annular elastic member (10) is rubber sealing ring.

9. The detachable lumen delivery system of claim 1, wherein, The inner side wall of the one end of the conveyor shell (2) is provided with fourth limiting ring (9) away from the conveyor handle (1), and the one end of the conveyor hose (3) is inserted into the other end of the conveyor shell (2) and abuts against the fourth limiting ring (9).

10. The detachable lumen delivery system of claim 1, wherein, The inner wall of the one end of the conveyor shell (2) is provided with elastic pad layer (11) away from the conveyor handle (1), and the elastic pad layer (11) is located on the outer periphery of the conveyor hose (3) when the conveyor hose (3) is inserted into the conveyor shell (2).

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